Characteristic of Wheel-rail Vibration of Vertical Section in High-speed Railway
In order to analyze the characteristics of wheel -rail vibration of vertical section in highspeed railway, a simulation model of vehicle/line is established by means of SIMPACK dynamics software in this paper. First of all,the influence of line parameters on wheel -rail dynamic interaction is calculated and analyzed. Then, the relation of wheel-rail vibration action region with slope and vertical curve radius is studied. Lastly,the characteristics of wheel-rail vibration of vertical section in different velocities are discussed. The results show that: (1) Vertical section slope and vertical curve radius of line have important influence on dynamics performance of wheel -rail system; the smaller vertical curve radius ,the more severe wheel-rail dynamic interaction. (2) The size of slope and vertical curve radius affect wheel -rail vibration action region ;the value of action region is approximately equal to the product of slope and vertical curve radius. (3) Different velocities have great influence on the characteristics of wheel -rail vibration, so it is need to reasonably match differ — ent slop and vertical curve radius when design vertical section of different speed grade lines.
Jiuchuan YANG Kaiyun WANG Pengfei LIU Jun WANG Baiqian HE
Train and Track Research Institute , State Key Laboratory of Traction Power, Southwest Jiaotong University , Chengdu 610031, China
国际会议
5th International Symposium on Environmental Vibration(第五届环境振动国际研讨会)
成都
英文
748-755
2011-10-20（万方平台首次上网日期，不代表论文的发表时间）